Senior Principal Engineer, Hardware Application Engineering — Board & System Design

Phizenix; Santa Clara (CA); On-site; USD 200,000 - 250,000; Full time

Job summary

Phizenix is seeking a Senior Principal Engineer, Hardware Application Engineering — Board & System Design to lead the hardware design of high-speed networking and AI platforms in Santa Clara, CA. The role requires deep expertise in board design, SI/PI, and power/thermal management across multi-gigabit SerDes.

Responsibilities include driving architecture, schematic development, layout reviews, and board bring-up, while collaborating with silicon, firmware, and systems teams to optimize

Qualifications

• Bachelor's, Master's, or PhD in Electrical Engineering, Computer Engineering, or related field.
• 15+ years of hardware design, development, and validation for high-speed networking or compute systems.
• 7+ years of board and system design for high-speed platforms (25G NRZ to 112G/224G PAM4 SerDes).
• Experience owning full board design lifecycle from architecture to validation.
• Experience delivering hardware reference designs for customers or internal platforms.
• High-speed PCB stack-up and material selection.
• Power architecture for high-current ASICs (PDN, sequencing, decoupling, tolerance).
• Thermal design and mechanical integration.
• Signal Integrity (SI) and Power Integrity (PI).
• Hands-on bring-up and debugging with lab equipment.
• Knowledge of high-speed interfaces (Ethernet, PCIe, DDR, SerDes).
• DFR/DFM/DFT experience; customer-facing engagements; strong communication.

Responsibilities

• Lead board and system hardware design for high-speed networking and AI platforms.
• Drive architecture, schematic development, PCB layout reviews, validation, and bring-up.
• Collaborate with silicon, firmware, and systems teams to optimize performance.
• Review SI/PI analyses and support customer design reviews.
• Provide technical leadership during customer engagements and platform deployment.
• Develop technical documentation and deliver engineering training.
• Serve as the technical bridge between customers, hardware engineering, and silicon teams.

Education

Bachelor's degree in Electrical/Computer Engineering

Tools

Cadence Allegro/Sigrity

Mentor/Siemens Xpedition/HyperLynx

Job description

Senior Principal Engineer, Hardware Application Engineering — Board & System Design

Required Qualifications

• Bachelor's, Master's, or PhD in Electrical Engineering, Computer Engineering, or a related field.
• 15+ years of hardware design, development, and validation experience for high-speed networking or compute systems.
• 7+ years of board and system design experience supporting high-speed platforms with 25G NRZ to 112G/224G PAM4 SerDes.
• Strong experience owning the complete board design lifecycle, including architecture, schematic design, layout guidance, board bring-up, and validation.
• Experience developing and delivering hardware reference designs for customer or internal platform adoption.
• High-speed PCB stack-up and material selection
• Power architecture for high-current ASICs (PDN, sequencing, decoupling, tolerance analysis)
• Thermal design and mechanical integration
• Signal Integrity (SI) and Power Integrity (PI)
• Hands-on experience with hardware bring-up, debugging, root-cause analysis, and lab equipment.
• Strong knowledge of high-speed interfaces including Ethernet, PCIe, DDR, and modern SerDes technologies.
• Experience with Design for Reliability (DFR), Design for Manufacturability (DFM), and Design for Testability (DFT).
• Customer-facing experience supporting technical engagements and resolving deployment issues.
• Excellent communication and technical presentation skills.

Preferred Qualifications

• Experience with Ethernet switch platforms and AI networking/fabric architectures.
• Experience designing platforms for hyperscale or megascale data centers.
• Knowledge of ODM/CM manufacturing, qualification, and reliability testing.
• Experience with advanced cooling technologies (liquid or immersion cooling).
• Hands-on experience with Cadence Allegro/Sigrity or Mentor/Siemens Xpedition/HyperLynx.
• Proven ability to influence product roadmaps and collaborate with cross-functional engineering teams.

Key Responsibilities

• Lead board and system hardware design for high-speed networking and AI platforms.
• Drive architecture, schematic development, PCB layout reviews, hardware validation, and board bring-up.
• Collaborate with silicon, firmware, and systems engineering teams to optimize platform performance.
• Review SI/PI analysis and support customer design reviews.
• Provide technical leadership during customer engagements and platform deployment.
• Develop technical documentation and deliver engineering training.
• Serve as the technical bridge between customers, hardware engineering, and silicon development teams

$200,000 - $250,000 USD